Lamp assembly and liquid crystal display device having the same

ABSTRACT

Disclosed are a lamp assembly and a liquid crystal display device having the lamp assembly. The lamp assembly includes a lamp having two electrodes, a power supply module formed with a clip for gripping the electrodes, a base body on which at least two power supply modules are intermittently disposed in series, and an insulating partition for insulating the power supply modules from each other. The power supply modules supplying power to lamps are insulated from each other while maintaining the interval there between minimized, so that a size of the liquid crystal display device may be reduced.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a lamp assembly and a liquidcrystal display device having the same, and more particularly to a lampassembly having multiple power supply modules insulated each other forproviding a power to lamps and a liquid crystal display device havingthe same.

[0003] 2. Description of the Related Art

[0004] Generally, a display device serves as an interface device forprocessing electric signals of image data to display visible images on ascreen.

[0005] A liquid crystal display device has superior display quality andslimmer and lighter structure as compared with other display deviceshaving the same screen size. The liquid crystal display device mainlyincludes a liquid crystal control part for controlling opticalproperties of liquid crystal and a light supply part for supplying lightto liquid crystal.

[0006] The liquid crystal control part also has a display panel with aplate shape for displaying images. The liquid crystal control part mayhave a size of 60 inches or larger in its diagonal line.

[0007] The light supply part supplies light to the liquid crystalcontrol part so that the liquid crystal control part displays images.

[0008] When the liquid crystal control part has a relatively small size,light emitting diodes (LED) each of which is a point light source, orone or two cold cathode fluorescent lamps (CCFL) having a short lengthare used as the light supply part.

[0009] As the size of the liquid crystal control part is increased,there is more demand in quantity of light to be supplied from the lightsupply part to the liquid crystal control part. That is, when the sizeof the liquid crystal control part increases, the point light source isnot desirable and the number and length of the cold cathode fluorescentlamps should increase. The cold cathode fluorescent lamps are generallydisposed under the liquid crystal control part. Since the cold cathodefluorescent lamp is a linear light source, brightness of light isreduced as the liquid crystal control part is apart from the coldcathode fluorescent lamps.

[0010] To avoid such a problem, the cold cathode fluorescent lamps aredisposed in parallel with each other and have a regular interval betweenadjacent lamps.

[0011] However, in order to light the cold cathode fluorescent lampsdisposed in parallel, electric wires have to be respectively connectedto electrodes of the cold cathode fluorescent lamps, so that thestructure thereof becomes complicated.

[0012] The problems in such a structure of a plurality of cold cathodefluorescent lamps in parallel are solved in “Cold cathode fluorescentlamp, container having the same, and liquid crystal display devicehaving the container” which has been filed with PCT (PCT application No.PCT/KR02-00613) by the applicant of the present invention, whosedisclosure in its entirety is incorporated by reference herein.

[0013] According to the above PCT application, a plurality of lamps aregrouped into several groups and the grouped lamps are connected with aconductive power supply module by being gripped with a plurality ofconductive clips disposed on the power supply module. In this state,power is supplied to the power supply module so that the power istransferred to the lamps through the clips.

[0014] However, it may be necessary to dispose at least two power supplymodules in series when the number of lamps increases. In this case, anelectric interference may be generated between the power supply modules.

[0015] That is, if an interval between the adjacent power supply modulesis narrow, electric discharge is generated between conductors of thepower supply modules so that the electric interference is generatedthere between. As a result, an insulation state between the power supplymodules may not be maintained.

[0016] On the contrary, if the interval between the power supply modulesis increased to maintain an insulation state between the power supplymodules, the size of a liquid crystal display device employing such lampassembly increases.

BRIEF SUMMARY OF THE INVENTION

[0017] The present invention provides a lamp assembly for providinglight and preventing power supply modules from being malfunctioned whenproviding a power to a plurality of lamps generating the light.

[0018] The present invention provides a liquid crystal display devicehaving a lamp assembly for providing light and preventing power supplymodules from being malfunctioned when providing a power to a pluralityof lamps generating the light.

[0019] In one aspect of the invention, a lamp assembly comprises a lampincluding a lamp tube and first and second electrodes disposed on thelamp tube; a power supply module including a first power supply modulecoupled to the first electrode to supply a first voltage to the firstelectrode and a second power supply module coupled to the secondelectrode to supply a second voltage to the second electrode; a basebody for receiving the first and second power supply modules; and afirst insulating partition disposed between the first power supplymodule and another first power supply module, and a second insulatingpartition disposed between the second power supply module and anothersecond power supply module, the first and second insulating partitionsbeing disposed on the base body.

[0020] In another aspect, a liquid crystal display device comprises alamp assembly including a lamp including a lamp tube and first andsecond electrodes disposed on the lamp tube, a power supply moduleincluding a first power supply module coupled to the first electrode tosupply a first voltage to the first electrode and a second power supplymodule coupled to the second electrode to supply a second voltage to thesecond electrode, a base body for receiving the first and second powersupply modules, and a first insulating partition disposed between thefirst power supply module and another first power supply module, and asecond insulating partition disposed between the second power supplymodule and another second power supply module, the first and secondinsulating partitions being disposed on the base body; a receivingcontainer for receiving the lamp assembly; a liquid crystal displaypanel assembly disposed in the receiving container to receive lightemitted from the lamp assembly; and a chassis fixed to the receivingcontainer in order to press an edge of the liquid crystal display panelassembly such that the liquid crystal display panel assembly isprevented from being separated from the receiving container.

[0021] According to the present invention, a plurality of lamps groupedinto several groups are simultaneously lit by means of power supplymodules while an insulation state is maintained between the power supplymodules, thereby preventing the lamps and the liquid crystal displaydevice from being broken and improving the performance of the lamps. Inaddition, the size of the liquid crystal display device may not beunnecessarily increased.

BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other advantages of the present invention willbecome readily apparent by reference to the following detaileddescription when considered in conjunction with the accompanyingdrawings wherein:

[0023]FIG. 1 is a schematic view showing a lamp assembly according to anembodiment of the present invention;

[0024]FIG. 2 is a perspective view showing a part of a first powersupply module according to an embodiment of the present invention;

[0025]FIG. 3 is a perspective view showing a part of a second powersupply module according to an embodiment of the present invention;

[0026]FIG. 4 is a perspective view showing a base body according to anembodiment of the present invention;

[0027]FIG. 5 is a sectional view of the base body taken along the lineA-A shown in FIG. 4;

[0028]FIG. 6 is a bottom view showing first and second power supplymodules and lamps mounted on a base body according to an embodiment ofthe present invention;

[0029]FIG. 7 is an exploded perspective view of an insulating partitiondisposed between first power supply modules according to an embodimentof the present invention;

[0030]FIG. 8 is an exploded perspective view of an insulating partitiondisposed between first power supply modules according to anotherembodiment of the present invention;

[0031]FIG. 9 is an exploded perspective view of an insulating partitiondisposed between first power supply modules according to still anotherembodiment of the present invention;

[0032]FIG. 10 is an exploded perspective view of a liquid crystaldisplay device according to an embodiment of the present invention; and

[0033]FIG. 11 is a sectional view of the liquid crystal display panel inFIG. 10.

DETAILED DESCRIPTION OF THE INVENTION

[0034]FIG. 1 is a schematic view showing a lamp assembly 100 accordingto an embodiment of the present invention.

[0035] Referring to FIG. 1, the lamp assembly 100 includes lamps 110, apower supply module 120, a base body 130 and an insulating partition140.

[0036] Each lamp has a lamp tube 112, a first electrode 114 and a secondelectrode 116. Preferably, at least two lamps 110 are provided.

[0037] The lamp tube 112 is a transparent tube having predeterminedthickness and length. Fluorescent material is coated on an inner wall ofthe lamp tube 112 to convert invisible light to visible light. Inaddition, a discharging gas is injected into the lamp tube 112 so as togenerate the invisible light. Discharging gas generates the invisiblelight when it is dissociated due to a high difference of electricfields.

[0038] The first and second electrodes 114 and 116 provide the electricfield difference sufficient for dissociating the discharging gas to thelamp tube 112. The first and second electrodes 114 and 116 are coupledto a surface of the lamp tube 112. The first and second electrodes 114and 116 are disposed on the surface of the lamp tube 112 such that aninsulation state between the first and second electrodes 114 and 116 ismaintained. The first electrode 114 is disposed at a first end of thelamp tube 112 and the second electrode 116 is disposed at a second endof the lamp tube 112, which is opposite to the first end.

[0039] The first and second electrodes 114 and 116 have a sleeve shape,such that they can be inserted into the lamp tube 112. On the otherhand, the first and second electrodes 114 and 116 may be plated on thesurface of the lamp tube 112. The first and second electrodes 114 and116 may be formed on the surface of the lamp tube 112, for example,through an electroless plating process.

[0040] According to the electroless plating process, metal ionscontained in aqueous solution receive electrons due to a reducing agentso that metal ions are reduced into metal molecules, thereby forming ametal thin film on the surface of the lamp tube 112. The electrolessplating process may be applicable for non-metallic materials such asglass.

[0041] A plurality of lamps 110 having the above-structure are disposedin parallel so as to generate light.

[0042] A same interval is maintained between adjacent lamps 110 in orderto uniformly distribute brightness of light. The lamps 110 generatelight when power is applied to the first and second electrodes 114 and116.

[0043] The power supply module 120 supplies the power to the first andsecond electrodes 114 and 116 of the lamps 110 while fixedly grippingthe first and second electrodes 114 and 116 of the lamps 110.

[0044] The power supply module 120 includes at least two first powersupply modules 122 and 124 and at least two second power supply modules127 and 128.

[0045] The first power supply modules 122 and 124 apply a first voltageto the first electrodes 114 and the second power supply modules 127 and128 apply a second voltage to the second electrodes 116.

[0046] Reference numerals 123 and 125 represent first power supply linesfor supplying the first voltage to the first power supply modules 122and 124 and reference numerals 126 and 129 represent second power supplylines for supplying the second voltage to the second power supplymodules 127 and 128.

[0047] The first and second voltages have an electric field differencesufficient for dissociating discharging gas injected into the lamp tube112.

[0048]FIG. 2 is a perspective view showing a part of the first powersupply modules according to an embodiment of the present invention.

[0049] Referring to FIGS. 1 and 2, the first power supply modules 122and 124 include first power supply bodies 122 a and 14 a and first clips12 b and 14 b, respectively.

[0050] The first voltage is applied to the first power supply bodies 122a and 14 a through the first power supply lines 123 and 125. Inaddition, coupling holes 122 c and 124 c are formed in the first powersupply bodies 122 a and 14 a in order to electrically connect the firstpower supply bodies 122 a and 14 a to the first power supply lines 123and 125.

[0051] At least one first clip 12 b and 14 b is formed in each of thefirst power supply bodies 122 a and 14 a. For example, a first clip 12 band 14 b has a pair of clips as shown in FIG. 2. The first clips 12 band 14 b each have first height H₁ and first length L₁.

[0052] The first clips 12 b and 14 b are bent to securely grip the firstelectrode 114.

[0053] Reference numerals 122 d and 124 d represent screw holes forfixing the first power supply bodies 122 a and 14 a to the base body130.

[0054]FIG. 3 is a perspective view showing a part of the second powersupply modules according an embodiment of the present invention.

[0055] Referring to FIGS. 1 to 3, the second power supply modules 127and 128 include second power supply bodies 127 a and 128 a and secondclips 127 b and 128 b, respectively.

[0056] The second voltage is applied to the second power supply bodies127 a and 128 b through the second power supply lines 126 and 129. Inaddition, coupling holes 127 c and 128 c are formed in the second powersupply bodies 127 a and 128 a in order to electrically connect thesecond power supply bodies 127 a and 128 a to the second power supplylines 126 and 129.

[0057] At least one second clip 127 b and 128 b is formed in each of thesecond power supply bodies 127 a and 128 a. For example, a second clip127 b and 128 b has a pair of clips as shown in FIG. 3. The second clips127 b and 128 b each have second height H₂ and second length L₂.

[0058] First height H₁ and first length L₁ of the first clips 12 b and14 b are substantially identical to second height H₂ and second lengthL₂ of the second clips 127 b and 128 b, respectively.

[0059] The second clips 127 b and 128 b are bent to securely grip thesecond electrode 116.

[0060] Reference numerals 127 d and 128 d represent screw holes forfixing the second power supply bodies 127 a and 128 a to the base body130.

[0061] The power supply module 120 applies power to the lamps 110 froman exterior, thereby lighting the lamps 110.

[0062] In detail, the lamps 110 are simultaneously lit by means of atleast two adjacent first power supply modules 122 and 124 and at leasttwo adjacent second power supply modules 127 and 128. For example, tenlamps 110 are simultaneously lit by means of at least two adjacent firstpower supply modules 122 and 124 and at least two adjacent second powersupply modules 127 and 128. The power supply module 120 is coupled tothe base body 130.

[0063]FIG. 4 is a perspective view showing the base body according tothe embodiment of the present invention and FIG. 5 is a sectional viewof the base body taken along line A-A shown in FIG. 4.

[0064] Referring to FIGS. 4 and 5, the base body 130 protecting thefragile lamps 110 includes a hollow frame of a rectangular shape. Thebase body 130 does not block the light emitted from the lamp tube 112 ofthe lamp 110 shown in FIG. 1, while covering the first and secondelectrodes 114 and 116, which do not emit light.

[0065] As shown in FIGS. 4 and 5, the base body 130 has a first side131, a second side 132 and a third side 133.

[0066] Referring to FIG. 5, the first side 131 has a rectangular stripshape and also may have a rectangular opening. The first side 131includes an inner rim 131 a and an outer rim 131 b. The second side 132is extended from the outer rim 131 b of the first side 131 by a firstlength. The third side 133 faces the second side 132 and is extendedfrom the inner rim 131 a of the first side 131 by the first length.

[0067] Thus, a receiving space 134 is defined by the first to thirdsides 131, 132 and 133. The first and second electrodes 114 and 116 ofthe lamp 110 are disposed in the receiving space 134.

[0068]FIG. 6 is a bottom view of the lamp assembly 100, showing thefirst and second power supply modules and lamps mounted on the base bodyaccording to the embodiment of the present invention.

[0069] Referring to FIG. 6, the first power supply modules 122 and 124are coupled to a rear portion of the first side 131 of the base body130, and the second power supply modules 127 and 128 are also disposedat a rear portion of the corresponding first side of the base body 130.The first power supply modules 122 and 124 have a gap G, and the secondpower supply module 127 and 128 also have a gap G therebetween. Thefirst and second power supply modules are disposed in parallel to eachother.

[0070] The areal size of the base body 130 may increase by enlarging thegap G to maintain a more secured insulation state between the firstpower supply modules 122 and 124. Thus, the size of a liquid crystaldisplay device employing such lamp assembly also increases.

[0071] On the contrary, the areal size of the base body 130 maydecreases by minifying the gap G. In this case, the insulation statebetween the first power supply modules 122 and 124 may not bemaintained.

[0072] In addition, the second power supply modules 127 and 128 aredisposed in line with each other. The areal size of the base body 130may increase by enlarging the gap G to maintain a more securedinsulation state between the second power supply modules 127 and 128.Thus, the size of a liquid crystal display device employing such lampassembly also increases.

[0073] On the contrary, the area size of the base body 130 may decreaseby minifying the gap G. In this case, the insulation state between thesecond power supply modules 127 and 128 may not be maintained.

[0074] In order to reduce the size of the base body 130 while theinsulation state between the first power supply modules 122 and 124 andbetween the second power supply modules 127 and 128 is maintained, aninsulating partition is disposed in the base body 130.

[0075]FIG. 7 is an exploded perspective view of the insulating partitiondisposed between the first power supply modules according to anembodiment of the present invention.

[0076] Referring to FIG. 7, the insulating partition 140 includes aninsulating body 144 and an adhesive 142. The insulating body 144 isarranged in a space between the first power supply modules 122 and 124,and the adhesive 142 attaches the insulating body 144 to the first side131 of the base body 130. The first power supply modules 122 and 124 areinsulated from each other by means of the insulating partition 140.

[0077] The length L₁ of the insulating body 144 is substantially same asor longer than a first width W₁ of the first power supply modules 122and 124, or substantially same as or shorter than a second width W₂defined between the second and third sides 132 and 133 of the base body130.

[0078] In addition, the height H₁ of the insulating body 144 issubstantially same as or higher than the thickness of the first powersupply modules 122 and 124, or substantially same as or lower than theheight H₂ of the second and third sides 132 and 133 of the base body130.

[0079] In addition, the insulating partition 140 having the insulatingbody 144 and the adhesive 142 is also disposed between the second powersupply modules 127 and 128. The insulation partition 140 is disposedbetween the second power supply modules 127 and 128 with the same manneras described above, so it will not be further described below.

[0080]FIG. 8 is an exploded perspective view of an insulating partitiondisposed between the first power supply modules according to anotherembodiment of the present invention.

[0081] Referring to FIG. 8, the insulating partition 141 includes aninsulating body 145 and a fixing pin 146 disposed at the bottom of theinsulating body 145. An fixing hole 135 such as a slot or a perforationhole is formed between the first power supply modules 122 and 124. Theshape and position of the fixing pin 146 are determined to fit into thefixing hole 135. The insulating body 145 is fixed to the first side 131of the base body 130 by means of the fixing pin 146.

[0082] The length L₁ of the insulating body 145 is substantially equalto or longer than a first width W₁ of the first power supply modules 122and 124, or substantially equal to or shorter than a second width W₂defined between the second and third sides 132 and 133 of the base body130.

[0083] In addition, the height H₁ of the insulating body 145 issubstantially equal to or higher than the thickness of the first powersupply modules 122 and 124, or substantially equal to or lower than theheight H₂ of the second and third sides 132 and 133 of the base body130.

[0084] In addition, the insulating partition 141 having the insulatingbody 145 and the fixing pin 146 is also disposed between the secondpower supply modules 127 and 128. The insulation partition 141 isdisposed between the second power supply modules 127 and 128 with thesame manner as described above, so it will not be further describedbelow.

[0085]FIG. 9 is an exploded perspective view of an insulating partition148 disposed between the first power supply modules according to stillanother embodiment of the present invention.

[0086] Referring to FIG. 9, the insulating partition 148 is protrudedfrom the base body 130 and formed between the first power supply modules122 and 124 so as to insulate the first power supply modules 122 and 124from each other. The insulating partition 148 is integrally formed onthe first side 131 of the base body 130 by means of a molding process.

[0087] The length L₁ of the insulating partition 148 is substantiallyequal to or longer than a first width W₁ of the first power supplymodules 122 and 124, or substantially equal to or shorter than a secondwidth W₂ defined between the second and third sides 132 and 133 of thebase body 130.

[0088] In addition, the height H₁ of the insulating partition 148 issubstantially equal to or higher than the thickness of the first powersupply modules 122 and 124, or substantially equal to or lower than theheight H₂ of the second and third sides 132 and 133 of the base body130.

[0089] The insulating partition 148 is also disposed between the secondpower supply modules 127 and 128. The insulation partition 140 isdisposed between the second power supply modules 127 and 128 with thesame manner as described above, so it will not be further describedbelow.

[0090] Since the lamps 110 of the lamp assembly 100 are brittle, theyare vulnerable to an external impact. In order to solve this problem, asshown in FIGS. 7 to 9, a rubber plate 170 is disposed between the firstside 131 of the base body 130 and the first power supply modules 122 and124 and between the first side 131 of the base body 130 and the secondpower supply modules 127 and 128. The rubber plate 170 serves as animpact absorber to cope with an external impact.

[0091] In this embodiment, the rubber plate 170 is screw-coupled to thefirst power supply modules 122 and 124, the second power supply modules127 and 128, and the first side 131 of the base body 130 by means of acoupling screw 175.

[0092]FIG. 10 is an exploded perspective view of a liquid crystaldisplay device 900 according to an embodiment of the present invention.

[0093] The liquid crystal display device 900 mainly includes a lampassembly 100, a liquid crystal display panel assembly 600, a receivingcontainer 450 and a top chassis 800. In addition, the liquid crystaldisplay device 900 further includes a middle chassis 200 and opticalsheets 700.

[0094] The liquid crystal display panel assembly 600 includes a liquidcrystal display panel 610 and a driving device 620.

[0095]FIG. 11 is a sectional view of the liquid crystal display panel610 in FIG. 10.

[0096] Referring to FIG. 11, the liquid crystal display panel 610includes a color filter substrate 605, a TFT substrate 607 and liquidcrystal 606.

[0097] The TFT substrate 607 includes a transparent substrate 607 a, athin film transistor 608 and a pixel electrode 609.

[0098] The thin film transistor 608 is formed on the transparentsubstrate 607 a in a matrix configuration through a thin film formingprocess. The pixel electrode 609 is connected to an output terminal ofeach thin film transistor 608. The pixel electrode 609 may be made oftransparent and conductive material such as indium tin oxide or indiumzinc oxide material.

[0099] The color filter substrate 605 includes a transparent substrate601, a color filter 602 and a common electrode 603.

[0100] The color filter 602 is disposed on the transparent substrate 601at an area corresponding to the pixel electrode 609. The commonelectrode 603 is disposed over a whole area of the transparent substrate601 so as to cover the pixel electrode 609.

[0101] Liquid crystal 606 is filled into a cell gap between the TFTsubstrate 607 and the color filter substrate 602 in a down-drop manneror a vacuum injection manner. Liquid crystal 606 changes a lighttransmittance based on an electric field difference between the pixelelectrode 609 and the common electrode 603.

[0102] The liquid crystal display panel assembly 600 may control opticalproperties of the liquid crystal 606 filled in the liquid crystaldisplay panel 610. However, the liquid crystal display panel assembly600 cannot display images without light externally provided.

[0103] In other words, the liquid crystal display panel assembly 600controls quantity of light passing through the liquid crystal 606. Thus,light is provided to the liquid crystal display panel 610 for the liquidcrystal display device 900 to display images.

[0104] Also, light having non-uniform brightness is not desirable fordisplaying images because light having non-uniform brightness divides animage displayed on a screen or creates an uneven image, where an imageis darker in one part and brighter in another part. Accordingly, lighthaving uniform brightness is desirable for the liquid crystal displaydevice 900 to display quality images.

[0105] To this end, the lamp assembly 100 of the liquid crystal displaydevice 900 is designed to provide light with uniform brightness. Thelamp assembly 100 is described above with reference to the embodimentsshown in FIGS. 1 to 9.

[0106] Referring to FIG. 10 again, the optical sheets 700 include adiffusion sheet 710 and a prism sheet 720. The diffusion sheet 710reduces brightness deviation of light generated from the lamps 110 ofthe lamp assembly 100. The prism sheet 720 corrects an orientation oflight passed through the diffusion sheet 710, so that more amount oflight is incident into the liquid crystal display panel 600, therebyimproving usage efficiency of light.

[0107] The middle chassis 200 to be received in the receiving container450 receives the liquid crystal display panel assembly 600 therein.

[0108] The receiving container 450 has sidewalls, a bottomsurface, andan open upper surface. The lamp assembly 100, the optical sheets 700 andthe middle chassis 200 are received in the receiving container 450.

[0109] The top chassis 800, which may be made of stainless steel, iscoupled with the receiving container 450on its sidewalls and surroundsan edge portion of the liquid crystal display panel assembly 600.

[0110] The top chassis 800 prevents the liquid crystal display panelassembly 600 from being separated from the receiving container 450 andprotects the liquid crystal display panel assembly 600 from an externalimpact.

[0111] According to the present invention, a plurality of lamps aredisposed in parallel with each other and grouped into several groupseach of which a voltage is supplied to from a power supply module. Aninsulating state is maintained between adjacent power supply moduleseach of which provides a voltage to a corresponding group of lamps.

[0112] While the present invention has been described in detail withreference to the preferred embodiments thereof, it should be understoodto those skilled in the art that various changes, substitutions andalterations can be made hereto without departing from the scope of theinvention as defined by the appended claims.

What is claimed is:
 1. A lamp assembly comprising: a lamp including alamp tube and first and second electrodes disposed on the lamp tube; apower supply module including a first power supply module coupled to thefirst electrode to supply a first voltage to the first electrode and asecond power supply module coupled to the second electrode to supply asecond voltage to the second electrode; a base body for receiving thefirst and second power supply modules; and a first insulating partitiondisposed between the first power supply module and another first powersupply module, and a second insulating partition disposed between thesecond power supply module and another second power supply module, thefirst and second insulating partitions being disposed on the base body.2. The lamp assembly as claimed in claim 1, wherein the first insulatingpartition includes a first insulating body disposed between the firstpower supply modules and a first adhesive for fixing the firstinsulating body onto the base body, and the second insulating partitionincludes a second insulating body disposed between the second powersupply modules and a second adhesive for fixing the second insulatingbody onto the base body.
 3. The lamp assembly as claimed in claim 2,wherein the first and second insulating bodies each have a length longerthan a width of the first and second power supply modules, respectively,and shorter than a width of the base body, and a height substantiallyequal to or lower than a height of the base body and substantially equalto or higher than a thickness of the first and second power supplymodules, respectively.
 4. The lamp assembly as claimed in claim 1,wherein the first insulating partition includes a first protrusioninserted into a first fixing hole formed in the base body between thefirst power supply modules, and the second insulating partition includesa second protrusion inserted into a second fixing hole formed in thebase body between the second power supply modules.
 5. The lamp assemblyas claimed in claim 4, wherein the first and second insulatingpartitions each have a length longer than a width of the first andsecond power supply modules, respectively, and shorter than a width ofthe base body, and a height substantially equal to or lower than aheight of the base body and substantially equal to or higher than athickness of the first and second power supply modules, respectively. 6.The lamp assembly as claimed in claim 1, wherein the first and secondinsulating partitions are each formed on the base body to be integrallyprotruded from the base body.
 7. The lamp assembly as claimed in claim6, wherein the first and second insulating partitions each have a lengthlonger than a width of the first and second power supply modules,respectively, and shorter than a width of the base body, and a heightsubstantially equal to or lower than a height of the base body andsubstantially equal to or higher than a thickness of the first andsecond power supply modules, respectively.
 8. The lamp assembly asclaimed in claim 1, wherein the base body includes sidewalls to form areceiving space in which the first and second power supply modules aredisposed.
 9. The lamp assembly as claimed in claim 8, wherein thereceiving space receives the first and second electrodes of the lampwhich are secured on the base body.
 10. The lamp assembly as claimed inclaim 1, wherein the first power supply module comprises a first powersupply body and a first clip disposed on the first power supply body togrip the first electrode of the lamp, and the second power supply modulecomprises a second power supply body and a second clip disposed on thesecond power supply body to grip the second electrode of the lamp. 11.The lamp assembly as claimed in claim 10, wherein the first and secondclips each have a pair of clips bent to securely grip the first andsecond electrodes, respectively.
 12. The lamp assembly as claimed inclaim 1, wherein the first and second power supply modules are fixed tothe base body by means of a coupling screw.
 13. The lamp assembly asclaimed in claim 1, further comprising a first impact absorbing memberdisposed between the first power supply module and the base body and asecond impact absorbing member disposed between the second power supplymodule and the base body.
 14. The lamp assembly as claimed in claim 13,wherein the first and second impact absorbing members are each a rubberplate to absorb an impact externally applied.
 15. A liquid crystaldisplay device comprising: a lamp assembly including a lamp including alamp tube and first and second electrodes disposed on the lamp tube, apower supply module including a first power supply module coupled to thefirst electrode to supply a first voltage to the first electrode and asecond power supply module coupled to the second electrode to supply asecond voltage to the second electrode, a base body for receiving thefirst and second power supply modules, and a first insulating partitiondisposed between the first power supply module and another first powersupply module, and a second insulating partition disposed between thesecond power supply module and another second power supply module, thefirst and second insulating partitions being disposed on the base body;a receiving container for receiving the lamp assembly; a liquid crystaldisplay panel assembly disposed in the receiving container to receivelight emitted from the lamp assembly; and a chassis fixed to thereceiving container in order to press an edge of the liquid crystaldisplay panel assembly such that the liquid crystal display panelassembly is prevented from being separated from the receiving container.16. The liquid crystal display device as claimed in claim 15, whereinthe first insulating partition is protruded from the base body at anarea between the first power supply modules, and the second insulatingpartition is protruded from the base body at an area between the secondpower supply modules.
 17. The liquid crystal display device as claimedin claim 15, wherein the first and second insulating partitions eachhave a length longer than a width of the first and second power supplymodules, respectively, and shorter than a width of the base body, and aheight lower than a height of the base body and substantially equal toor higher than a thickness of the first and second power supply modules,respectively.
 18. The liquid crystal display device as claimed in claim15, further comprising an optical member disposed between the liquidcrystal display panel assembly and the lamp assembly to control opticalproperties of light emitted from the lamp assembly.
 19. The liquidcrystal display device as claimed in claim 15, wherein the lamp assemblyincludes: a plurality of lamp groups each having at least one lamp; aplurality of first power supply modules each of which is associated withcorresponding one of the lamp groups to provide a first voltage to firstelectrodes of lamps of the corresponding lamp group; a plurality ofsecond power supply modules each of which is associated withcorresponding one of the lamp groups to provide a second voltage tosecond electrodes of lamps of the corresponding lamp group; at least onefirst insulating partition disposed between adjacent ones of the firstpower supply modules; and at least one second insulating partitiondisposed between adjacent ones of the second power supply modules. 20.The liquid crystal display device as claimed in claim 19, wherein theplurality of first power supply modules are arranged in line with eachother at a first side of the lamps, and the plurality of second powersupply modules are arranged in line with each other at a second side ofthe lamps opposite to the first side.